{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5573449e64e0660f7ee209d1eab5881d4ccbee3b"
            }
          ],
          "repo": "https://github.com/bluefeet/starch",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "Starch versions 0.14 and earlier generate session ids insecurely.\n\nThe default session id generator returns a SHA-1 hash seeded with a counter, the epoch time, the built-in rand function, the PID, and internal Perl reference addresses. The PID will come from a small set of numbers, and the epoch time may be guessed, if it is not leaked from the HTTP Date header. The built-in rand function is unsuitable for cryptographic usage.\n\nPredicable session ids could allow an attacker to gain access to systems.",
  "id": "CVE-2025-40925",
  "modified": "2026-03-13T21:49:46.046236209Z",
  "published": "2025-09-20T13:15:34.920Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://metacpan.org/dist/Starch/source/lib/Starch/Manager.pm"
    },
    {
      "type": "FIX",
      "url": "https://github.com/bluefeet/Starch/commit/5573449e64e0660f7ee209d1eab5881d4ccbee3b.patch"
    },
    {
      "type": "FIX",
      "url": "https://github.com/bluefeet/Starch/pull/5"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}